—Hi, Lin Tao. I didn't see you at the party. 

—Oh, I _______ ready for the maths exam. [ ]

A. got

B. was getting

C. have got

D. am getting

如果出现用人单位可以解除劳动合同的情形，用人单位要解除劳动合同，应提前 ( )以书面形式通知劳动者本人。

A．1个月

B．2个月

C．3个月

D．6个月